scholarly journals Nano Carrier Drug Delivery Systems for the Treatment of Neuropsychiatric Disorders: Advantages and Limitations

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5294 ◽  
Author(s):  
Yana Zorkina ◽  
Olga Abramova ◽  
Valeriya Ushakova ◽  
Anna Morozova ◽  
Eugene Zubkov ◽  
...  

Neuropsychiatric diseases are one of the main causes of disability, affecting millions of people. Various drugs are used for its treatment, although no effective therapy has been found yet. The blood brain barrier (BBB) significantly complicates drugs delivery to the target cells in the brain tissues. One of the problem-solving methods is the usage of nanocontainer systems. In this review we summarized the data about nanoparticles drug delivery systems and their application for the treatment of neuropsychiatric disorders. Firstly, we described and characterized types of nanocarriers: inorganic nanoparticles, polymeric and lipid nanocarriers, their advantages and disadvantages. We discussed ways to interact with nerve tissue and methods of BBB penetration. We provided a summary of nanotechnology-based pharmacotherapy of schizophrenia, bipolar disorder, depression, anxiety disorder and Alzheimer’s disease, where development of nanocontainer drugs derives the most active. We described various experimental drugs for the treatment of Alzheimer’s disease that include vector nanocontainers targeted on β-amyloid or tau-protein. Integrally, nanoparticles can substantially improve the drug delivery as its implication can increase BBB permeability, the pharmacodynamics and bioavailability of applied drugs. Thus, nanotechnology is anticipated to overcome the limitations of existing pharmacotherapy of psychiatric disorders and to effectively combine various treatment modalities in that direction.

2020 ◽  
Vol 19 (5) ◽  
pp. 360-373 ◽  
Author(s):  
Panoraia I. Siafaka ◽  
Ece Ö. Bülbül ◽  
Gökce Mutlu ◽  
Mehmet E. Okur ◽  
Ioannis D. Karantas ◽  
...  

Alzheimer's disease is a neuropathological disease with symptoms such as language problems, confusion as to place or time, loss of interest in activities, which were previously enjoyed, behavioral changes, and memory loss. Alzheimer's disease and other types of dementia affect almost 46.8 million people globally and are estimated to strike about 131.5 million people in 2050. It has been reported that Alzheimer's is the sixth main cause of mortality. The most used drugs, which are currently approved by the Food, and Drug Administration for Alzheimer’s disease are donepezil, rivastigmine, galantamine, memantine, and the combination of donepezil and memantine. However, most of the drugs present various adverse effects. Recently, the transdermal drug delivery route has gained increasing attention as an emerging tool for Alzheimer's disease management. Besides, transdermal drug delivery systems seem to provide hope for the management of various diseases, due to the advantages that they offer in comparison with oral dosage forms. Herein, the current advancements in transdermal studies with potent features to achieve better Alzheimer's disease management are presented. Many researchers have shown that the transdermal systems provide higher efficiency since the first-pass hepatic metabolism effect can be avoided and a prolonged drug release rate can be achieved. In summary, the transdermal administration of Alzheimer's drugs is an interesting and promising topic, which should be further elaborated and studied.


2021 ◽  
pp. 1-67
Author(s):  
Qin Ouyang ◽  
Yingcai Meng ◽  
Wenhu Zhou ◽  
Jianbin Tong ◽  
Zeneng Cheng ◽  
...  

2021 ◽  
Vol 18 ◽  
Author(s):  
Panoraia I. Siafaka ◽  
Gökce Mutlu ◽  
Neslihan Üstündağ Okur

Background: Dementia and its related types such as Alzheimer’s disease, vascular dementia and mixed dementia belong to brain associated diseases, resulting in long-term progressive memory loss. These diseases are so severe that can affect a person's daily routine. Up to date, treatment of de- mentias is still an unmet challenge due to their complex pathophysiology and unavailable efficient pharmacological approaches. The use of nanotechnology based pharmaceutical products could possibly improve the management of dementia given that nanocarriers could more efficiently deliver drugs to the brain. Objective: The objective of this study is to provide the current nanotechnology based drug delivery systems for the treatment of various dementia types. In addition, the current diagnosis biomarkers for the mentioned dementia types along with their available pharmacological treatment are being dis- cussed. Method: An extensive review of the current nanosystems such as brain drug delivery systems against Alzheimer’s disease, vascular dementia and mixed dementia was performed. Moreover, nan- otheranostics as possible imaging markers for such dementias were also reported. Results: The field of nanotechnology is quite advantageous for targeting dementia given that nanoscale drug delivery systems easily penetrate the blood brain barrier and circulate in the body for prolonged time. These nanoformulations consist of polymeric nanoparticles, solid lipid nanoparticles, nanostruc- tured lipid carriers, microemulsions, nanoemulsions, and liquid crystals. The delivery of the nan- otherapeutics can be achieved via various administration routes such as transdermal, injectable, oral, and more importantly, through the intranasal route. Nonetheless, the nanocarriers are mostly limited to Alzheimer’s disease targeting; thus, nanocarriers for other types of dementia should be developed. Conclusion: To conclude, understanding the mechanism of neurodegeneration and reviewing the cur- rent drug delivery systems for Alzheimer’s disease and other dementia types are significant for medical and pharmaceutical society to produce efficient therapeutic choices and novel strategies based on mul- tifunctional and biocompatible nanocarriers, which can deliver the drug sufficiently into the brain.


2017 ◽  
Vol 245 ◽  
pp. 95-107 ◽  
Author(s):  
Ming Ming Wen ◽  
Noha S. El-Salamouni ◽  
Wessam M. El-Refaie ◽  
Heba A. Hazzah ◽  
Mai M. Ali ◽  
...  

2021 ◽  
Vol 18 ◽  
Author(s):  
Balbir Singh ◽  
Hasandeep Singh ◽  
Brahmjot Singh ◽  
Navkaran Kumar ◽  
Ankita Rajput ◽  
...  

: Alzheimer's disease (AD) is one of the most prevalent neurodegenerative diseases reported in the aging population across the globe. About 46.8 million people are reported to have dementia, and AD is mainly responsible for dementia in aged people. Alzheimer's disease (AD) is thought to occur due to the accumulation of β-amyloid (Aβ) in the neocortex portion of the brain, nitric oxide mediated dysfunctioning of blood-brain barrier, reduced activity of serine racemase enzyme, cell cycle disturbances, damage of N-methyl-D-aspartate (NMDA) receptors and glutamatergic neurotransmission. Modern treatment methods target the pathways responsible for the disease. To date, solely symptomatic treatments exist for this disease, all making an attempt to counterbalance the neurotransmitter disturbance. Treatments able to prevent or at least effectively modifying the course of AD, referred to as ‘disease-modifying’ drugs, are still under extensive research. Effective treatments entail a better indulgence of the herbal bioactives by novel drug delivery systems. The herbal bioactive administered by novel drug delivery systems have proved beneficial in treating this disease. This review provides detailed information about the role of medicinal plants and their formulations in treating Alzheimer disease which will be highly beneficial for the researchers working in this area.


2020 ◽  
Vol 26 (12) ◽  
pp. 1331-1344
Author(s):  
Shiv Bahadur ◽  
Nidhi Sachan ◽  
Ranjit K. Harwansh ◽  
Rohitas Deshmukh

Alzheimer's disease (AD) is a neurodegenerative brain problem and responsible for causing dementia in aged people. AD has become most common neurological disease in the elderly population worldwide and its treatment remains still challengeable. Therefore, there is a need of an efficient drug delivery system which can deliver the drug to the target site. Nasal drug delivery has been used since prehistoric times for the treatment of neurological disorders like Alzheimer's disease (AD). For delivering drug to the brain, blood brain barrier (BBB) is a major rate limiting factor for the drugs. The desired drug concentration could not be achieved through the conventional drug delivery system. Thus, nanocarrier based drug delivery systems are promising for delivering drug to brain. Nasal route is a most convenient for targeting drug to the brain. Several factors and mechanisms need to be considered for an effective delivery of drug to the brain particularly AD. Various nanoparticlized systems such as nanoparticles, liposomes, exosomes, phytosomes, nanoemulsion, nanosphere, etc. have been recognized as an effective drug delivery system for the management of AD. These nanocarriers have been proven with improved permeability as well as bioavailability of the anti-Alzheimer’s drugs. Some novel drug delivery systems of anti-Alzheimer drugs are under investigation of different phase of clinical trials. Present article highlights on the nanotechnology based intranasal drug delivery system for the treatment of Alzheimer’s disease. Furthermore, consequences of AD, transportation mechanism, clinical updates and recent patents on nose to brain delivery for AD have been discussed.


2015 ◽  
Vol 2 (3) ◽  
pp. 332-358 ◽  
Author(s):  
Morgan Robinson ◽  
◽  
Brenda Yasie Lee ◽  
Zoya Leonenko

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